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feat: add async agent spawning with git worktree isolation
Add /spawn-agent command: - Spawns agents (codex, aider, claude) in isolated tmux sessions - Git worktree support for parallel development - Optional handover document passing (--with-handover) - Isolated branches: agent/agent-{timestamp} - Session metadata tracking in ~/.claude/agents/ - Monitoring pane with real-time output Enhance /handover command: - Add --agent-spawn mode for passing context to agents - Two modes: standard (human) vs agent-spawn (task-focused) - Saves to both primary and backup locations - Programmatic timestamp generation Add git-worktree-utils.sh: - create_agent_worktree: Creates isolated workspace - cleanup_agent_worktree: Removes worktree and branch - list_agent_worktrees: Shows all active worktrees - merge_agent_work: Integrates agent branch - CLI interface for manual management
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‎claude-code-4.5/commands/handover.md‎

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# Handover Command
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# /handover - Generate Session Handover Document
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Use this command to generate a session handover document when transferring work to another team member or continuing work in a new session.
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Generate a handover document for transferring work to another developer or spawning an async agent.
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## Usage
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```
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/handover [optional-notes]
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```bash
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/handover # Standard handover
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/handover "notes about current work" # With notes
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/handover --agent-spawn "task desc" # For spawning agent
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```
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## Description
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## Modes
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This command generates a comprehensive handover document that includes:
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### Standard Handover (default)
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- Current session health status
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For transferring work to another human or resuming later:
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- Current session health
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- Task progress and todos
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- Technical context and working files
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- Instructions for resuming work
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- Any blockers or important notes
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- Technical context
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- Resumption instructions
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## Example
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### Agent Spawn Mode (`--agent-spawn`)
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For passing context to spawned agents:
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- Focused on task context
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- Technical stack details
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- Success criteria
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- Files to modify
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## Implementation
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### Detect Mode
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```bash
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MODE="standard"
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AGENT_TASK=""
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NOTES="${1:-}"
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if [[ "$1" == "--agent-spawn" ]]; then
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MODE="agent"
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AGENT_TASK="${2:-}"
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shift 2
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fi
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```
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/handover Working on authentication refactor, need to complete OAuth integration
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### Generate Timestamp
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```bash
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TIMESTAMP=$(date +"%Y-%m-%d-%H-%M-%S")
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DISPLAY_TIME=$(date +"%Y-%m-%d %H:%M:%S")
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FILENAME="handover-${TIMESTAMP}.md"
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PRIMARY_LOCATION="${TOOL_DIR}/session/${FILENAME}"
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BACKUP_LOCATION="./${FILENAME}"
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mkdir -p "${TOOL_DIR}/session"
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```
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## Output Location
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### Standard Handover Content
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```markdown
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# Handover Document
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**Generated**: ${DISPLAY_TIME}
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**Session**: $(tmux display-message -p '#S' 2>/dev/null || echo 'unknown')
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## Current Work
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[Describe what you're working on]
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## Task Progress
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[List todos and completion status]
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## Technical Context
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**Current Branch**: $(git branch --show-current)
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**Last Commit**: $(git log -1 --oneline)
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**Modified Files**:
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$(git status --short)
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## Resumption Instructions
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1. Review changes: git diff
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2. Continue work on [specific task]
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3. Test with: [test command]
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## Notes
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${NOTES}
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```
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### Agent Spawn Handover Content
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```markdown
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# Agent Handover - ${AGENT_TASK}
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**Generated**: ${DISPLAY_TIME}
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**Parent Session**: $(tmux display-message -p '#S' 2>/dev/null || echo 'unknown')
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**Agent Task**: ${AGENT_TASK}
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## Context Summary
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**Current Work**: [What's in progress]
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**Current Branch**: $(git branch --show-current)
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**Last Commit**: $(git log -1 --oneline)
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## Task Details
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**Agent Mission**: ${AGENT_TASK}
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**Requirements**:
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- [List specific requirements]
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- [What needs to be done]
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**Success Criteria**:
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- [How to know when done]
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## Technical Context
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**Stack**: [Technology stack]
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**Key Files**:
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$(git status --short)
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**Modified Recently**:
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$(git log --name-only -5 --oneline)
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The handover document MUST be saved to:
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- **Primary Location**: `.{{TOOL_DIR}}/session/handover-{{TIMESTAMP}}.md`
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- **Backup Location**: `./handover-{{TIMESTAMP}}.md` (project root)
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## Instructions for Agent
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## File Naming Convention
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1. Review current implementation
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2. Make specified changes
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3. Add/update tests
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4. Verify all tests pass
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5. Commit with clear message
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Use this format: `handover-YYYY-MM-DD-HH-MM-SS.md`
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## References
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Example: `handover-2024-01-15-14-30-45.md`
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**Documentation**: [Links to relevant docs]
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**Related Work**: [Related PRs/issues]
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```
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### Save Document
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**CRITICAL**: Always obtain the timestamp programmatically:
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```bash
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# Generate timestamp - NEVER type dates manually
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TIMESTAMP=$(date +"%Y-%m-%d-%H-%M-%S")
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FILENAME="handover-${TIMESTAMP}.md"
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# Generate appropriate content based on MODE
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if [ "$MODE" = "agent" ]; then
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# Generate agent handover content
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CONTENT="[Agent handover content from above]"
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else
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# Generate standard handover content
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CONTENT="[Standard handover content from above]"
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fi
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# Save to primary location
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echo "$CONTENT" > "$PRIMARY_LOCATION"
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# Save backup
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echo "$CONTENT" > "$BACKUP_LOCATION"
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echo "✅ Handover document generated"
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echo ""
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echo "Primary: $PRIMARY_LOCATION"
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echo "Backup: $BACKUP_LOCATION"
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echo ""
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```
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## Implementation
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## Output Location
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**Primary**: `${TOOL_DIR}/session/handover-{timestamp}.md`
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**Backup**: `./handover-{timestamp}.md`
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## Integration with spawn-agent
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The `/spawn-agent` command automatically calls `/handover --agent-spawn` when `--with-handover` flag is used:
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```bash
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/spawn-agent codex "refactor auth" --with-handover
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# Internally calls: /handover --agent-spawn "refactor auth"
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# Copies handover to agent worktree as .agent-handover.md
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```
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## Notes
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1. **ALWAYS** get the current timestamp using `date` command:
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```bash
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date +"%Y-%m-%d %H:%M:%S" # For document header
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date +"%Y-%m-%d-%H-%M-%S" # For filename
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```
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2. Generate handover using `{{HOME_TOOL_DIR}}/templates/handover-template.md`
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3. Replace all `{{VARIABLE}}` placeholders with actual values
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4. Save to BOTH locations (primary and backup)
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5. Display the full file path to the user for reference
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6. Verify the date in the filename matches the date in the document header
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The handover document will be saved as a markdown file and can be used to seamlessly continue work in a new session.
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- Always uses programmatic timestamps (never manual)
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- Saves to both primary and backup locations
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- Agent mode focuses on task context, not session health
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- Standard mode includes full session state

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